import axios from 'axios';
import { ElNotification, ElMessageBox } from 'element-plus';
import sysConfig from "@/config";
import tool from '@/utils/tool';
import router from '@/router';

axios.defaults.baseURL = '/api'
axios.defaults.timeout = sysConfig.TIMEOUT

// HTTP request 拦截器
axios.interceptors.request.use(
	(config) => {
		let token = tool.cookie.get("token");
		if(token){
			config.headers[sysConfig.TOKEN_NAME] = sysConfig.TOKEN_PREFIX + token
		}
		if(!sysConfig.REQUEST_CACHE && config.method == 'get'){
			config.params = config.params || {};
			config.params['_'] = new Date().getTime();
		}
		if (config.method == "post" || config.method == "put" || config.method == "patch" || config.method == "delete") {
			if (config.url !== '/login/token' && config.url !== '/setting/config/lang') {
				const salt = tool.data.get("USER_INFO")['salt'];
				config.data = tool.generateApiSignature(config.data, salt)
			}
		}
		Object.assign(config.headers, sysConfig.HEADERS)
		return config;
	},
	(error) => {
		return Promise.reject(error);
	}
)

//FIX 多个API同时401时疯狂弹窗BUG
let MessageBox_401_show = false

// HTTP response 拦截器
axios.interceptors.response.use(
	(response) => {
		return response;
	},
	(error) => {
		if (error.response) {
			if (error.response.status == 404) {
				ElNotification.error({
					title: '请求错误',
					message: "Status:404，正在请求不存在的服务器记录！"
				})
			} else if (error.response.status == 500) {
				ElNotification.error({
					title: '请求错误',
					message: error.response.data.message || "Status:500，服务器发生错误！"
				})
			}  else if (error.response.status == 401) {
				if(!MessageBox_401_show){
					MessageBox_401_show = true
					ElMessageBox.confirm('当前用户已被登出或无权限访问当前资源，请尝试重新登录后再操作。', '无权限访问', {
						type: 'error',
						closeOnClickModal: false,
						center: true,
						confirmButtonText: '重新登录',
						beforeClose: (action, instance, done) => {
							MessageBox_401_show = false
							done()
						}
					}).then(() => {
						router.replace({path: '/login'});
					}).catch(() => {})
				}
			} else {
				ElNotification.error({
					title: '请求错误',
					message: error.message || `Status:${error.response.status}，未知错误！`
				})
			}
		} else {
			ElNotification.error({
				title: '请求错误',
				message: "请求服务器无响应！"
			})
		}
		return Promise.reject(error.response);
	}
)

const http = {
	/** get 请求
	 * @param  {string} url 接口地址
	 * @param  {object} params 请求参数
	 * @param  {object} config 参数
	 */
    get: (url, params = {}, config = {}) => {
		return new Promise((resolve, reject) => {
			axios({
				method: 'get',
				url,
				params,
				...config
			}).then(response => resolve(response.data)).catch(error => reject(error));
		});
	},
	/** post 请求
	 * @param  {string} url 接口地址
	 * @param  {object} data 请求参数
	 * @param  {object} config 参数
	 */
    post: (url, data = {}, config = {}) => {
		return new Promise((resolve, reject) => {
			axios({
				method: 'post',
				url,
				data,
				...config
			}).then(response => resolve(response.data)).catch(error => reject(error));
		});
	},
	/** put 请求
	 * @param  {string} url 接口地址
	 * @param  {object} data 请求参数
	 * @param  {object} config 参数
	 */
    put: (url, data = {}, config = {}) => {
		return new Promise((resolve, reject) => {
			axios({
				method: 'put',
				url,
				data,
				...config
			}).then(response => resolve(response.data)).catch(error => reject(error));
		});
	},
	/** patch 请求
	 * @param  {string} url 接口地址
	 * @param  {object} data 请求参数
	 * @param  {object} config 参数
	 */
    patch: (url, data = {}, config = {}) => {
		return new Promise((resolve, reject) => {
			axios({
				method: 'patch',
				url,
				data,
				...config
			}).then(response => resolve(response.data)).catch(error => reject(error));
		});
	},
	/** delete 请求
	 * @param  {string} url 接口地址
	 * @param  {object} data 请求参数
	 * @param  {object} config 参数
	 */
    delete: (url, data = {}, config = {}) => {
		return new Promise((resolve, reject) => {
			axios({
				method: 'delete',
				url,
				data,
				...config
			}).then(response => resolve(response.data)).catch(error => reject(error));
		});
	},
	/** jsonp 请求
	 * @param  {string} url 接口地址
	 * @param  {string} name JSONP回调函数名称
	 */
    jsonp: (url, name='jsonp') => {
		return new Promise(resolve => {
			const script = document.createElement('script');
			const _id = `jsonp${Math.ceil(Math.random() * 1000000)}`;
			script.id = _id;
			script.type = 'text/javascript';
			script.src = url;
			window[name] = response => {
				resolve(response);
				document.getElementsByTagName('head')[0].removeChild(script);
				try {
					delete window[name];
				} catch(e) {
					window[name] = undefined;
				}
			}
			document.getElementsByTagName('head')[0].appendChild(script);
		});
	}
}
export default http;